2020 tables: Institutions - Nature & Science

The 2020 tables are based on Nature Index data from 1 January 2019 to 31 December 2019.

Table criteria

# Institution Share 2018 Share 2019 Count 2019 Change in Adjusted Share 2018-2019*
1 Foundation for Research and Technology - Hellas (FORTH), Greece 0.61 0.90 3 46.9%
2 National and Kapodistrian University of Athens (UOA), Greece 0.11 0.36 2 233.1%
3 University of Crete (UOC), Greece 0.32 0.22 3 -32.7%
4 University of Ioannina (UOI), Greece 0.15 2 N/A
5 University of Thessaly (UTH), Greece 0.13 3 N/A
6 American School of Classical Studies at Athens (ASCSA), Greece 0.06 0.08 1 33.8%
7 Agricultural University of Athens, Greece 0.06 2 N/A
8 National Observatory of Athens (NOA), Greece 0.02 0.03 1 50.5%
9 Hellenic Ministry of Culture and Sports, Greece 0.01 0.02 1 186.3%
9 Archaeological Museum of Aiani, Greece 0.02 1 N/A
9 University of the Aegean, Greece 0.02 1 N/A
10 Academy of Athens, Greece 0.15 0.02 1 -86.1%
11 Intermunicipal Stray Animals Care Centre (DIKEPAZ), Greece 0.01 1 N/A
12 Alexander Technological Educational Institute of Thessaloniki (ATEIT), Greece 0.00 1 N/A
13 Aristotle University of Thessaloniki (AUTH), Greece 0.07 0.00 1 -97.4%
13 Hellenic Mediterranean University (HMU), Greece 0.00 1 N/A
13 Hellenic Medical Association for Obesity (HMAO), Greece 0.00 1 N/A
14 Democritus University of Thrace (DUTH), Greece 0.00 0.00 1 -50.3%
14 Sotiria General Hospital, Greece 0.00 1 N/A
14 Harokopio University of Athens (HUA), Greece 0.00 1 N/A


Each year, the Nature Index publishes tables based on counts of high-quality research outputs in the previous calendar year. Users please note:

  1. The data behind the tables are based on a relatively small proportion of total research papers, they cover the natural sciences only and outputs are non-normalized (that is, they don’t reflect the size of the country or institution, or its overall research output).
  2. The Nature Index is one indicator of institutional research performance. The metrics of Count and Share used to order Nature Index listings are based on an institution’s or country’s publication output in 82 natural-science journals, selected on reputation by an independent panel of leading scientists in their fields.
  3. Nature Index recognizes that many other factors must be taken into account when considering research quality and institutional performance; Nature Index metrics alone should not be used to assess institutions or individuals.
  4. Nature Index data and methods are transparent and available under a creative commons licence at natureindex.com.

The Nature Index database undergoes regular updating, corrections, adjustment of institutional hierarchies, and removal of retracted papers and thus the live website can differ from the frozen annual tables.

*The change in adjusted Share accounts for the small annual variation in the total number of articles in Nature Index journals. Share values have been adjusted to 2020 levels to calculate the percentage change. For more information on the adjustment, please see the Adjusted metric explainer.